BtuB

BtuB is an outer membrane receptor found in a variety of bacteria, such as E. coli. As an essential receptor for the cell that is constitutively expressed, it is an ideal target to be parasitized, a feature exploited by a variety of proteins such as Colicins.

3D structure of BtuB
Update June 2011

2guf, 1nqe, 1nqf – EcBtuB – Escherichia coli

3m8b – EcBtuB (mutant)

3m8d - EcBtuB (mutant) + cyanocobalamin

1nqh - EcBtuB + cyanocobalamin + Ca

2ysu - EcBtuB + Colicin E2 receptor binding domain

1ujw - EcBtuB + Colicin E3 receptor binding domain

2gsk - EcBtuB + TonB C-terminal

1nqg - EcBtuB + Ca

2bto – PdBtuBA + thioredoxin – Prosthecobacter dejongeii

2btq – PdBtuBA + PdBtuBB